Global Patent Index - EP 2863441 A1

EP 2863441 A1 20150422 - Method for producing a backside contact in a solar cell device and solar cell device

Title (en)

Method for producing a backside contact in a solar cell device and solar cell device

Title (de)

Verfahren zur Herstellung eines Rückseitenkontakts in einer Solarzellenvorrichtung und Solarzellenvorrichtung

Title (fr)

Procédé de production d'un contact arrière dans un dispositif de cellule solaire et dispositif de cellule solaire

Publication

EP 2863441 A1 20150422 (EN)

Application

EP 13189532 A 20131021

Priority

EP 13189532 A 20131021

Abstract (en)

According to an aspect, a method for producing a backside contact in a solar cell is provided. The method includes providing a wafer with a backside, a front side, and one or more through hole through the wafer; filling the through hole with a first paste from the backside; and depositing a second paste on the filling from the backside. According to another aspect, a solar cell device is provided. The solar cell device includes a wafer with a backside and a front side; and a backside contact. The back side contact includes one or more through hole through the wafer; a filling of the one or more through hole made of a first paste; and a backside tabbing positioned on the backside of the wafer on the filling with the tabbing made of a second paste. The silver content by weight of the first paste may be higher than the silver content by weight of the second paste.

IPC 8 full level

H01L 31/0224 (2006.01)

CPC (source: CN EP)

H01L 31/02245 (2013.01 - CN EP); Y02E 10/50 (2013.01 - EP)

Citation (search report)

Citation (examination)

EP 2065941 A2 20090603 - SANYO ELECTRIC CO [JP]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2863441 A1 20150422; CN 104576820 A 20150429; CN 104576820 B 20180403; CN 203774340 U 20140813; TW 201523909 A 20150616

DOCDB simple family (application)

EP 13189532 A 20131021; CN 201310585491 A 20131119; CN 201320732804 U 20131119; TW 103136174 A 20141020